1
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Behera BK, Arandhara PJ, Porashar B, Bora SK, Saikia AK. Base-Promoted [4 + 2] Annulation Reaction of In Situ-Generated Azadienes from N-Propargylamines with Active Methylene Compounds: Access to Highly Functionalized 2-Pyridones. J Org Chem 2023; 88:15041-15059. [PMID: 37856150 DOI: 10.1021/acs.joc.3c01478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
A facile and efficient synthesis of structurally diversified 2-pyridones is demonstrated using the [4 + 2] annulation of in situ generated azadienes from N-propargylamines and active methylene compounds. The reaction is promoted by an inorganic base giving moderate to good yields. The developed methodology is applicable for the direct and formal synthesis of various bioactive molecules. The synthetic utility of the protocol was also illustrated by late-stage functionalization of the products.
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Affiliation(s)
- Bipin Kumar Behera
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Pallav Jyoti Arandhara
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Bikoshita Porashar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Surjya Kumar Bora
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Anil K Saikia
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
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2
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Wu ZG, Zhang H, Cao C, Lu C, Jiang A, He J, Zhao Q, Tang Y. Highly Selective Cyclization and Isomerization of Propargylamines to Access Functionalized Quinolines and 1-Azadienes. Molecules 2023; 28:6259. [PMID: 37687088 PMCID: PMC10488633 DOI: 10.3390/molecules28176259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 08/22/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023] Open
Abstract
Developing new organic reactions with excellent atom economy and high selectivity is significant and urgent. Herein, by ingeniously regulating the reaction conditions, highly selective transformations of propargylamines have been successfully implemented. The palladium-catalyzed cyclization of propargylamines generates a series of functionalized quinoline heterocycles, while the base-promoted isomerization of propargylamines affords diverse 1-azadienes. Both reactions have good functional group tolerance, mild conditions, excellent atom economy and high yields of up to 93%. More importantly, these quinoline heterocycles and 1-azadienes could be flexibly transformed into valuable compounds, illustrating the validity and practicability of the propargylamine-based highly selective reactions.
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Affiliation(s)
- Zheng-Guang Wu
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Hui Zhang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Chenhui Cao
- Anhui Sholon New Material Technology Co., Ltd., Chuzhou 239500, China
| | - Chaowu Lu
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Aiwei Jiang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Jie He
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Qin Zhao
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Yanfeng Tang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
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3
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Li J, Liu C, Zhao Z, Wang X, Chen D, Yue K, Chen S, Jin M, Shan Y. Halogen cation-promoted and solvent-regulated electrophilic cyclization for the regioselective synthesis of 3-haloquinolines and 3-halospirocyclohexadienones. Org Biomol Chem 2023; 21:2440-2446. [PMID: 36876461 DOI: 10.1039/d3ob00168g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
A novel approach for the production of halogen cations through the reaction of halogens with silver ions is described in this paper. On this basis, the regioselective synthesis of 3-haloquinolines and 3-halospirocyclohexadienones is realized through solvent regulation. The gram-scale reaction and the compatibility of complex substrates demonstrate the synthetic potential of this protocol, which will be an appealing strategy in organic synthesis.
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Affiliation(s)
- Jianming Li
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Chengxiao Liu
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Zihan Zhao
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Xin Wang
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Dianpeng Chen
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Kaiyuan Yue
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Sihan Chen
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Ming Jin
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
| | - Yingying Shan
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China.
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4
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Ye H, Zhou L, Chen Y, Tong H. Visible light driven multicomponent synthesis of difluoroamidosulfonyl quinoline derivatives. Org Biomol Chem 2023; 21:846-850. [PMID: 36602158 DOI: 10.1039/d2ob02069f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A visible-light-induced photocatalyst-free three-component radical tandem cyclization of N-propargylamine and N-allylbromodifluoroacetamides with the insertion of sulfur dioxide has been developed. Diverse difluoroamidosulfonylated quinolines are obtained in moderate to good yields. This protocol features broad functional group tolerance and high regioselectivity. Moreover, mechanistic studies reveal the involvement of the radical pathway and the formation of an electron donor-acceptor (EDA) complex in this reaction.
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Affiliation(s)
- Haiwei Ye
- Chemical Pharmaceutical Research Institute, Taizhou Vocational & Technical College, Taizhou, 318000, P.R. China.
| | - Liping Zhou
- Chemical Pharmaceutical Research Institute, Taizhou Vocational & Technical College, Taizhou, 318000, P.R. China.
| | - Yunhua Chen
- Chemical Pharmaceutical Research Institute, Taizhou Vocational & Technical College, Taizhou, 318000, P.R. China.
| | - Huaguang Tong
- Taizhou Daozhi Tech Co., Ltd, Taizhou, 318000, P.R. China
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5
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Zhao Y, Fan Y, Meng X, Kang X, Ji Z, Yan S, Tian L. Electrochemical Cyclization of Alkynyl Enaminones: Controllable Synthesis of Indeno[1,2- c]pyrroles or Indanones. J Org Chem 2022; 87:11131-11140. [PMID: 35926078 DOI: 10.1021/acs.joc.2c01373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report an electrochemical intramolecular [3 + 2] cyclization of alkynyl enaminones in a user-friendly undivided cell under constant current conditions without an oxidant and catalyst, and indeno[1,2-c]pyrrole derivatives could be obtained in good to excellent yields. Notably, preliminary substituent-controlled selective transformation is also achieved under electrocatalysis alone, and indeno[1,2-c]pyrrole (R4 ≠ H) or indanone derivatives (R4 = H) could be prepared directly under electrocatalysis without adding a base and heating process.
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Affiliation(s)
- Yulei Zhao
- Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Yuhang Fan
- Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Xiaohan Meng
- Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Xin Kang
- Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Zhongyin Ji
- Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Shina Yan
- Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Laijin Tian
- Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
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6
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Zhang M, Wu S, Wang L, Xia Z, Kuang K, Xu Q, Zhao F, Zhou N. Visible-Light-Induced Cascade Cyclization of N-Propargyl Aromatic Amines and Acyl Oxime Esters: Rapid Access to 3-Acylated Quinolines. J Org Chem 2022; 87:10277-10284. [DOI: 10.1021/acs.joc.2c01277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Man Zhang
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
- Anhui Province Key Laboratory of Optoelectronic Materials Science and Technology, School of Physics and Electronic Information, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Sixin Wu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Lei Wang
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Ziqin Xia
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Kaimo Kuang
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Qiankun Xu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Fangli Zhao
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Nengneng Zhou
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
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7
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Behera BK, Shit S, Biswas S, Saikia AK. Synthesis of Thiazole-2(3 H)-ones via [3,3]-Sigmatropic Rearrangement/5- exo-dig Cyclization of N-Propargylamines. J Org Chem 2022; 87:9259-9269. [PMID: 35772023 DOI: 10.1021/acs.joc.2c00991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient methodology has been developed for the synthesis of both di- and trisubstituted thiazol-2(3H)-ones from N-propargylamines and silver(I) trifluoromethanethiolate (AgSCF3) in good yields. The reaction proceeds via [3,3]-sigmatropic rearrangement/5-exo-dig cyclization of N-propargylamines. The starting material can be easily prepared from the A3-coupling reaction of amines, aldehydes, and alkynes. The methodology can be extended for the synthesis of thiozole-2(3H)-thione derivatives, and photophysical properties have been studied for some synthesized compounds.
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Affiliation(s)
- Bipin Kumar Behera
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Sudip Shit
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Subhamoy Biswas
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Anil K Saikia
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
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8
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Lu H, Qiu YC, Zhao Q, Tang R, Chen T, Hu L, Wu ZG. An efficient approach for 3-haloquinoline synthesis: PhI(OAc)2-mediated A3-X type tandem annulation of amine, aldehyde, alkyne and halide salt. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Zhou N, Xia Z, Wu S, Kuang K, Xu Q, Zhang M. Visible-Light-Induced Multicomponent Cascade Cycloaddition of N-Propargyl Aromatic Amines, Cyclobutanone Oxime Esters, and K 2S 2O 5: Access to Cyanoalkylsulfonylated Quinolines. J Org Chem 2021; 86:15253-15262. [PMID: 34643392 DOI: 10.1021/acs.joc.1c01866] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A visible-light-induced cascade cyanoalkylsulfonylation/cyclization/aromatization of N-propargyl aromatic amines with K2S2O5 and cyclobutanone oxime esters for the construction of cyanoalkylsulfonylated quinolines is developed. This cascade transformation features mild reaction conditions, a broad substrate scope, and excellent functional group compatibility, providing a convenient route toward cyanoalkylsulfonylated quinolines via the formation of a C-C bond and two C-S bonds in one step.
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Affiliation(s)
- Nengneng Zhou
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Ziqin Xia
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Sixin Wu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Kaimo Kuang
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Qiankun Xu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Man Zhang
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
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10
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Wang Y, Xiong G, Zhang C, Chen Y. Controllable Activation of β-Alkyl Nitroalkenes: Regioselective Synthesis of Allyl and Vinyl Sulfones. J Org Chem 2021; 86:4018-4026. [DOI: 10.1021/acs.joc.0c02869] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Ye Wang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Guowei Xiong
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Chuanxin Zhang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Yunfeng Chen
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, P. R. China
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11
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Teja C, Khan FRN. Radical Transformations towards the Synthesis of Quinoline: A Review. Chem Asian J 2020; 15:4153-4167. [PMID: 33135361 DOI: 10.1002/asia.202001156] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/25/2020] [Indexed: 12/21/2022]
Abstract
Quinoline is considered one of the most ubiquitous heterocycles due to its engaging biological activities and synthetic utility over organic transformations. Over the past few decades, numerous reports have been documented in the synthesis of quinolines. The classical methods including, Skraup, Friedlander, Doebner-von-Miller, Conrad-Limpach, Pfitzinger quinoline synthesis, and so forth, these are the well-known methods to construct principal quinoline scaffold with several advantages and limitations. Recently, radical insertion or catalyzed reactions have emerged as a powerful and efficient tool to construct heterocycles with high atom efficiency and step economy. In this concern, this minireview mainly focused on the developments of Quinoline synthesis via radical reactions. In addition, a brief description of the preparation procedure, reactivity, and mechanisms is also included, where as possible. Respectively, the synthesis of quinolines is classified and summarized based on its reactivity, so it will help the researchers to grab the information in this exploration area, as Quinolines are promising pharmacophores.
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Affiliation(s)
- Chitrala Teja
- Organic and Medicinal Chemistry Research Laboratory, School of Advanced Sciences, Vellore Institute of Technology, Vellore, 632 014, Tamil Nadu, India
| | - Fazlur Rahman Nawaz Khan
- Organic and Medicinal Chemistry Research Laboratory, School of Advanced Sciences, Vellore Institute of Technology, Vellore, 632 014, Tamil Nadu, India
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12
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Yuan JM, Li J, Zhou H, Xu J, Zhu F, Liang Q, Liu Z, Huang G, Huang J. Synthesis of 3-sulfonylquinolines by visible-light promoted metal-free cascade cycloaddition involving N-propargylanilines and sodium sulfinates. NEW J CHEM 2020. [DOI: 10.1039/c9nj05248h] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A visible-light promoted radical cascade reaction of N-propargylanilines with sodium sulfinates as sulfonyl radical precursors was developed under metal-free conditions.
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Affiliation(s)
- Jing-Mei Yuan
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics
- College of Chemistry and Materials
- Nanning Normal University
- Nanning 530001
- China
| | - Jinnan Li
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics
- College of Chemistry and Materials
- Nanning Normal University
- Nanning 530001
- China
| | - Heyang Zhou
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics
- College of Chemistry and Materials
- Nanning Normal University
- Nanning 530001
- China
| | - Jiali Xu
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics
- College of Chemistry and Materials
- Nanning Normal University
- Nanning 530001
- China
| | - Fengting Zhu
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics
- College of Chemistry and Materials
- Nanning Normal University
- Nanning 530001
- China
| | - Qiuli Liang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics
- College of Chemistry and Materials
- Nanning Normal University
- Nanning 530001
- China
| | - Zhiping Liu
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics
- College of Chemistry and Materials
- Nanning Normal University
- Nanning 530001
- China
| | - Guobao Huang
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology
- College of Chemistry and Food Science
- Yulin Normal University
- Yulin 537000
- China
| | - Jun Huang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics
- College of Chemistry and Materials
- Nanning Normal University
- Nanning 530001
- China
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13
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Ten years of progress in the synthesis of six-membered N-heterocycles from alkynes and nitrogen sources. Tetrahedron 2020. [DOI: 10.1016/j.tet.2019.130876] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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14
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Meng JP, Wang WW, Chen YL, Bera S, Wu J. Switchable solvent-controlled divergent synthesis: an efficient and regioselective approach to pyrimidine and dibenzo[b,f][1,4]oxazepine derivatives. Org Chem Front 2020. [DOI: 10.1039/c9qo01126a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An efficient solvent-controlled regioselective reaction has been developed. The reaction represents a novel protocol for the divergent one-pot synthesis of pyrimidine and dihydrodibenzo[b,f][1,4]oxazepine derivatives.
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Affiliation(s)
- Jin-Peng Meng
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. of China
| | - Wan-Wan Wang
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. of China
| | - Ying-Lu Chen
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. of China
| | - Saurav Bera
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. of China
| | - Jun Wu
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. of China
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15
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Xiao F, Hu Y, Huang H, Xu F, Deng GJ. Base-controlled divergent synthesis of vinyl sulfones from (benzylsulfonyl)benzenes and paraformaldehyde. Org Biomol Chem 2020; 18:3527-3535. [DOI: 10.1039/d0ob00362j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A tuneable metal-free protocol for the selective preparation of α-substituted vinyl sulfone and (E)-vinyl sulfone derivatives has been described. The base played an important role in the selectivity control of transformation.
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Affiliation(s)
- Fuhong Xiao
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- Key Laboratory for Green Organic Synthesis and Application of Hunan. Province
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Yangling Hu
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- Key Laboratory for Green Organic Synthesis and Application of Hunan. Province
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Huawen Huang
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- Key Laboratory for Green Organic Synthesis and Application of Hunan. Province
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Fen Xu
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- Key Laboratory for Green Organic Synthesis and Application of Hunan. Province
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Guo-Jun Deng
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- Key Laboratory for Green Organic Synthesis and Application of Hunan. Province
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
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16
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Harry NA, Ujwaldev SM, Anilkumar G. Recent advances and prospects in the metal-free synthesis of quinolines. Org Biomol Chem 2020; 18:9775-9790. [DOI: 10.1039/d0ob02000a] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Metal-free synthesis of quinolines has recently gained attention, and this review focuses on the recent advances in the metal-free synthesis of quinolines.
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Affiliation(s)
- Nissy Ann Harry
- School of Chemical Sciences
- Mahatma Gandhi University
- Kottayam
- India 686560
| | | | - Gopinathan Anilkumar
- School of Chemical Sciences
- Mahatma Gandhi University
- Kottayam
- India 686560
- Advanced Molecular Materials Research Centre (AMMRC)
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17
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Li L, Zhang XG, Hu BL, Zhang XH. Copper-Catalyzed Electrophilic Cyclization of N-Propargylamines with Sodium Sulfinate for the Synthesis of 3-Sulfonated Quinolines. Chem Asian J 2019; 14:4358-4364. [PMID: 31680431 DOI: 10.1002/asia.201901298] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 10/20/2019] [Indexed: 12/17/2022]
Abstract
A convenient and effective protocol for the synthesis of 3-sulfonated quinolines via copper-catalyzed electrophilic cyclization of N-propargylamines has been developed, in which cheap and stable sodium sulfinates were utilized as green sulfonylation reagents. This cascade transformation involves radical addition, cyclization and dehydrogenative aromatization processes in a one-pot reaction under mild conditions.
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Affiliation(s)
- Ling Li
- College of Chemistry and Materials Engineering, Wenzhou University, Chashan Town, Wenzhou, 325035, China
| | - Xing-Guo Zhang
- College of Chemistry and Materials Engineering, Wenzhou University, Chashan Town, Wenzhou, 325035, China
| | - Bo-Lun Hu
- College of Chemistry and Materials Engineering, Wenzhou University, Chashan Town, Wenzhou, 325035, China
| | - Xiao-Hong Zhang
- College of Chemistry and Materials Engineering, Wenzhou University, Chashan Town, Wenzhou, 325035, China
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18
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Zhang Y, Chen W, Jia X, Wang L, Li P. A visible-light-induced oxidative cyclization of N-propargylanilines with sulfinic acids to 3-sulfonated quinoline derivatives without external photocatalysts. Chem Commun (Camb) 2019; 55:2785-2788. [DOI: 10.1039/c8cc10235j] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A visible-light-induced oxidative cyclization of N-propargyl anilines with sulfinic acids to 3-sulfonated quinoline derivatives was developed under external photocatalyst-free conditions.
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Affiliation(s)
- Yicheng Zhang
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
- School of Environmental and Chemical Engineering
| | - Wei Chen
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
| | - Xueshun Jia
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Lei Wang
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
- State Key Laboratory of Organometallic Chemistry
| | - Pinhua Li
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
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19
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Li XF, Zhang XG, Hu BL, Zhang XH. Palladium-catalyzed dimerization of N-aryl propargylamines for the synthesis of 3-vinylquinolines. Org Biomol Chem 2018; 16:1736-1744. [PMID: 29459926 DOI: 10.1039/c8ob00133b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A straightforward method for the synthesis of polyfunctionalized quinolines from readily available N-aryl propargylamines under aerobic conditions was developed. It provides convenient access to a variety of synthetically and pharmaceutically important quinolines in moderate to good yields. Control experiments suggest that the cascade reaction might proceed via the Pd-catalyzed electrophilic cyclization of N-aryl propargylamines followed by a hydroarylation process through trapping of the σ-quinolinylpalladium intermediate with a second molecule of the substrate.
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Affiliation(s)
- Xiao-Fang Li
- College of chemical and materials engineering, Wenzhou University, Wenzhou 325035, China.
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